Extra fumbles
Just Press A, Y, B, A, Y, B at copyright title screen.
Tackles after the game ends
You have to Press B, Y, Start(4) at copyright screen to make it work.
Bouncing and Jumping Players
You have to Press Down, Down, Start, Down, Down, Start at the copyright screen to get it to work.
The Black Field
Just Press Start, Y, Down, Start, Y, Down at copyright screen to make it happen.
The Slippery Field
Just Press Y(8) at copyright screen to make it work.
Tough Team
Try Pressing B, Y, Down, Start(2) at copyright screen menue.
Loose Team
Just Press Start, Y, Down, Y, Start(2) at copyright screen to make it work.
Unlockable: NFC or AFC Pre Seasonal Teams
You have to enter Y, B, Y, B, Y, B at copyright screen menue to make it work, afterwards choose "Preseason" option.
Unlockable: Iguana & Acclaim Teams
Just Press Down, Y, Down, Down, Y, Down, at copyright screen to make it work smoothly.
Unlockable: All Bonus Teams
You have to Press X, Left, X, Left, B, A, B, Y, Down, A at main game menu.
How to Unlock th Acclaim and Iguana Teams
You got to Press Y, A, X, Y, Down, B, Left, Y, Up, Right at the main game menu screen.
Way to Unlock the AFC & NFC Professional Teams
Press B, Up, Left, A, X, Right, Up, Right, Up, B at main game menu title screen.
Unlock the Panthers & the Jaguars
You must Press Up, Down, X, Y, Left, Up, B, A, Down, Y at the main game menu title window.
The Master Cheat Code
Just Press Down, Start, A, Y, B, Down at copyright game screen menu.
Infinite Turbo Runs
You must Press B, Y, A(2), Y, Start at copyright game screen menu.
Up & the Over Dives
Try Pressing A, Y, Start, Start, Y, B at copyright game screen menu.
Zero Fumbles
You have to Press B, Y, B, Y, B, Y at copyright game screen menu.
